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"Am I delighted! We had all treasured a little 78 that Daddy sent his parents from Germany while in Army during WW2. The surface was trying to crack, so I knew I needed professional help to archive it to MP3, which might actually be impossible. In fact, Dr. Coban sent me an extraordinary MP3 that was more clear than when we played it a ..."

Logarithm

The logarithm of a number is that power to which 10 must be raised to equal the number. The logarithm of 1,000 is 3, since 10 to the 3rd power = 1,000.